解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3

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解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3
解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3

解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3
2(3-y)=5-4(y+5)
6-2y=5-4y-20
21=-2y
y=-10.5
(2x+1)/6+(x-1)/3=1
2x+1+2x-2=6
4x=7
x=7/4
60%x-(x+3)*50%=3
0.6x-0.5x-1.5=3
0.1x=1.5
x=15